EP0412279B1 - Dispositif de changement de vitesses pour la boîte de vitesses d'une voiture - Google Patents

Dispositif de changement de vitesses pour la boîte de vitesses d'une voiture Download PDF

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Publication number
EP0412279B1
EP0412279B1 EP90112320A EP90112320A EP0412279B1 EP 0412279 B1 EP0412279 B1 EP 0412279B1 EP 90112320 A EP90112320 A EP 90112320A EP 90112320 A EP90112320 A EP 90112320A EP 0412279 B1 EP0412279 B1 EP 0412279B1
Authority
EP
European Patent Office
Prior art keywords
shift
gear
rails
shifting device
shift rails
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP90112320A
Other languages
German (de)
English (en)
Other versions
EP0412279A3 (en
EP0412279A2 (fr
Inventor
Klaus Dipl.-Ing. Doster
Huber Dipl.-Ing. Müller
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dr Ing HCF Porsche AG
Original Assignee
Dr Ing HCF Porsche AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dr Ing HCF Porsche AG filed Critical Dr Ing HCF Porsche AG
Publication of EP0412279A2 publication Critical patent/EP0412279A2/fr
Publication of EP0412279A3 publication Critical patent/EP0412279A3/de
Application granted granted Critical
Publication of EP0412279B1 publication Critical patent/EP0412279B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/30—Constructional features of the final output mechanisms
    • F16H63/34—Locking or disabling mechanisms
    • F16H63/3408—Locking or disabling mechanisms the locking mechanism being moved by the final actuating mechanism
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/08—Multiple final output mechanisms being moved by a single common final actuating mechanism
    • F16H63/20—Multiple final output mechanisms being moved by a single common final actuating mechanism with preselection and subsequent movement of each final output mechanism by movement of the final actuating mechanism in two different ways, e.g. guided by a shift gate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/30—Constructional features of the final output mechanisms
    • F16H63/34—Locking or disabling mechanisms
    • F16H63/36—Interlocking devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/30—Constructional features of the final output mechanisms
    • F16H63/38—Detents
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H2063/005—Preassembled gear shift units for mounting on gear case
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/30—Constructional features of the final output mechanisms
    • F16H2063/3079—Shift rod assembly, e.g. supporting, assembly or manufacturing of shift rails or rods; Special details thereof
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19219—Interchangeably locked
    • Y10T74/19251—Control mechanism
    • Y10T74/19279—Cam operated
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20012—Multiple controlled elements
    • Y10T74/20018—Transmission control
    • Y10T74/20085—Restriction of shift, gear selection, or gear engagement
    • Y10T74/20104—Shift element interlock
    • Y10T74/20116—Resiliently biased interlock
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20576—Elements
    • Y10T74/20636—Detents

Definitions

  • the invention relates to a switching device for a synchronized gear change transmission of a motor vehicle according to the preamble of claim 1.
  • a similar actuating device for a gear shift transmission is described in the magazine "Sport Auto" 4/1988, page 127.
  • the transmission gears are preselected with a first Bowden cable operated by the gearshift lever, and the individual transmission gears are shifted with shift forks and synchronizing clutches with a second Bowden cable.
  • An actuation device serves as a connection from the shift forks to the preselection shaft and shift shaft actuated by the Bowden cables.
  • the selector shaft is provided with a radially protruding selector finger which engages in recesses of selector rails which form selector gates. The shift rails acting on the shift forks can be moved transversely to the shift shaft.
  • the transmission gears are preselected by shifting the shift finger in the axial direction of the shift shaft, and the transmission gears can be shifted by pivoting the shift finger.
  • the shift rails next to the selected shift gate are each blocked by cams, which are formed in one piece with the shift finger and rest on the inside of circular wall parts of the shift rails.
  • a switching device is known, DE 1 430 227, in which shift rails interact with a U-shaped leg having a shaped spring.
  • the legs only attack one side of the shift rails, which should not lead to a satisfactory function.
  • several beads with different spacings are provided on the legs, which protrude into corresponding recesses, which complicates the efforts to maintain close tolerances in order to ensure a smooth shifting process.
  • the object of the invention is to provide a simple and inexpensive to lock, with which all shift rails can be locked to each other and to the gearbox.
  • the shaped spring is U-shaped in cross-section, grips like a pair of pliers with the U-legs on the switching rails on their upper and lower sides and engages with the beads formed at the ends of the U-legs in correspondingly shaped depressions of the shift rails.
  • the recesses are expediently located on two cam lobes attached to the shift rails; they define a neutral middle position, a left and right switching position.
  • the depressions or cam elevations on the shift rails can be punched out at the same time with a V-recess against which the locking cams of a contact piece rest. If a switching rail is brought into a left or right switching position with the switching finger of the switching element, the form spring lifts off the other switching rails during this switching process. But these are locked in that the locking cams rest on their V-recesses.
  • a drive shaft 2 driven by the motor, an output shaft 4 driving the front axle 3 of the motor vehicle and an intermediate shaft 5 for the reverse gear R are mounted parallel to one another.
  • the transmission gears G1, G2, G3, G4 and G5, each consisting of a fixed gear and an idler gear meshing with it, and the reverse gear R are arranged in this order on the drive shaft 2 or output shaft 4 and can be connected to them by means of synchronizing clutches 6.
  • a gearbox housing 7 is cast onto the gearbox housing 1 and together with the gearbox housing 1 by an end face Bearing cover 8 closed.
  • a cover 9 is screwed onto the open-top shift housing 7 and contains the entire actuating device for the shift forks 10, 11 and 12 which engage in the sliding sleeves of the synchronizing clutches 6.
  • the central element of the actuating device is a switching element 13, which is connected to a switching shaft 14 by means of serration to transmit torque and is longitudinally displaceable for preselecting the gears on the switching shaft 14 against the force of a helical spring 15 and a right helical spring 16 which bears against it on the left.
  • the selector shaft 14 is articulated with a lever 17 mounted on the end of a Bowden cable (not shown) leading to a gear shift lever.
  • the preselection movement is carried out with a preselection shaft 18, which is mounted perpendicular to the shift shaft 14 in the cover 9 and is articulated with a front lever 19 to a Bowden cable 20 which is also connected to the gear shift lever.
  • the preselection shaft 18 carries a selector lever 21 which engages with a bearing 22 on the upper side of the contact piece 13.
  • a switching finger 23 is cast onto the tube hub of the switching element 13 and can be inserted into continuous V-recesses 24 of three switching rails 25, 26, 27 resting against one another.
  • two radially projecting locking cams 28, 29 are attached to the contact piece 13; they form a cross with the central plane of the contact piece 13 passing through the switching finger 23 and the bearing 22.
  • the outer contour 30 of the locking cams 28, 29 is in the form of a circular arc and can be inserted into V-recesses 24 in the shift rails 25, 26, 27.
  • the locking cams 28, 29 are arranged in the longitudinal direction of the contact piece 13 to the shift finger 23 so that when the shift finger 23 engages in the V-recess 24 of the one switching rail 25, the locking cams 28, 29 in the V-recesses 24 of the other two switching rails 26, 27 intervene and lock them in place.
  • Each of the three shift rails 25, 26, 27 carries a shift nose 31 on its underside, the shift nose 31 of the middle shift rail 26 into a recess 32 of the middle shift fork 11, the shift lugs 31 of the left and right shift rails 25, 27 into the left shift fork 12 or engage the right shift fork 10.
  • the shift forks 10, 11, 12 are guided in a longitudinally movable manner on a guide tube 33 parallel to the output shaft 4, which is mounted in the shift housing 7 and is supported in a longitudinally movable manner in relation to it by springs 34 and 35 on both sides, in order to prevent the shift forks 10, 11, 12 from becoming jammed.
  • the shift forks engage with their forks in ring rotations of the sliding sleeves 37 actuating the synchronizing clutches 6.
  • the shift rails 25, 26, 27 have slots 38, 39 on both sides, which run parallel to the guide tube 33. Pins 40, 41 are fitted into the slots and are fastened in ribs 42, 43 of the cover 9.
  • a U-shaped form spring 44 with spring claws 45, 46 attached in the web area is fastened to the pin 40.
  • the shift rails 25, 26, 27 lie in a central U-cutout 47 of the shaped spring 44, which is pierced from the web side.
  • the U-legs 48, 49 of the shaped spring 44 comprise the shift rails 25, 26, 27 on their upper sides 50 and 51 in the manner of pliers and engage with their beads 52 in the position shown in central depressions of the shift rails 25, 26, 27, which are formed between two cam projections 53, 54.
  • the U-legs are provided with bends 55.
  • a switching contact 56 actuated by the switching rails 25, 26, 27 is used to detect and remotely transmit the switching position.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gear-Shifting Mechanisms (AREA)

Claims (6)

  1. Dispositif de changement de vitesse pour une boîte de vitesses synchronisée d'un véhicule automobile, dans lequel la commutation des rapports (G 1, G 2, G 3, G 4 et G 5) s'effectue au moyen d'un doigt de commutation (23), qui coopère avec plusieurs tiges de commutation parallèles entre elles dans le plan d'une voie de commutation commune, les tiges de commutation (24, 25, 26) étant en prise avec un ressort façonné (44), présentant des branches (48, 49) en U, lequel ressort possède sur ses branches (48, 49) des moulures (52) s'engageant dans des creux des rails de commutation (25, 26, 27), caractérisé en ce que les branches (48, 49) du ressort façonné (44) entourent en pince toutes les tiges de commutation (24, 25, 26) et s'engagent, avec leurs moulures (52), dans des creux de forme correspondante pratiqués sur la face supérieure (50) et la face inférieure (51) des rails de commutation (24, 25, 26).
  2. Dispositif de changement de vitesse selon la revendication 1, caractérisé en ce que la zone du dos du ressort façonné (44) est fixée sur un goujon (40) solidaire de la boîte, sur lequel les rails de commutation (25, 26, 27) sont guidés longitudinalement, parallèlement à un tube de guidage (33) solidaire de la boîte, pour les fourches de commutation (10, 11, 12).
  3. Dispositif de changement de vitesse selon la revendication 1, caractérisé en ce que le ressort façonné (44) présente, à partir du dos, une découpe (47) centrale en U, dans laquelle sont placés les rails de commutation (25, 26, 27).
  4. Dispositif de changement de vitesse selon la revendication 1, caractérisé en ce que chaque rail de commutation (25, 26, 27) présente sur sa face supérieure (50) et sa face inférieure (51) deux reliefs de came (53, 54) contre lesquels s'appliquent en formant ressort les moulures (52) des branches de U (48, 49) et définissent ainsi une position de commutation gauche, une position centrale et une position droite des rails de commutation (25, 26, 27).
  5. Dispositif de changement de vitesse selon l'une des revendications 1 à 4, caractérisé en ce que pour la commutation de cinq marches avant et d'une marche arrière on utilise trois rails de commutation (25, 26, 27).
  6. Dispositif de changement de vitesse selon la revendication 5, caractérisé en ce que pendant l'actionnement d'un rail (26), les deux autres rails (25, 27) sont verrouillés par des cames d'arrêt (28, 29), en cercle, de la pièce de commutation (13), qui glissent le long des évidements en V (24) des rails de commutation (25, 27).
EP90112320A 1989-08-07 1990-06-28 Dispositif de changement de vitesses pour la boîte de vitesses d'une voiture Expired - Lifetime EP0412279B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3929678 1989-08-07
DE3929678A DE3929678A1 (de) 1989-09-07 1989-09-07 Schaltvorrichtung fuer ein zahnraeder-wechselgetriebe eines kraftfahrzeugs

Publications (3)

Publication Number Publication Date
EP0412279A2 EP0412279A2 (fr) 1991-02-13
EP0412279A3 EP0412279A3 (en) 1991-09-04
EP0412279B1 true EP0412279B1 (fr) 1994-08-31

Family

ID=6388788

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90112320A Expired - Lifetime EP0412279B1 (fr) 1989-08-07 1990-06-28 Dispositif de changement de vitesses pour la boîte de vitesses d'une voiture

Country Status (3)

Country Link
US (1) US5146806A (fr)
EP (1) EP0412279B1 (fr)
DE (2) DE3929678A1 (fr)

Families Citing this family (15)

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US5385223A (en) * 1994-02-16 1995-01-31 Saturn Corporation Shift control mechanism for a multi-speed countershaft transmission
US5560254A (en) * 1994-07-25 1996-10-01 Saturn Corporation Shift control mechanism for a multi-speed countershaft transmission
DE19713423C5 (de) * 1996-04-03 2015-11-26 Schaeffler Technologies AG & Co. KG Vorrichtung und Verfahren zur Betätigung eines Getriebes
DE19747954A1 (de) * 1997-10-30 1999-05-06 Bayerische Motoren Werke Ag Blattfederrastierung für Schaltgetriebe
WO2003087635A1 (fr) * 2002-04-10 2003-10-23 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Dispositif d'actionnement de transmission comprenant une zone d'appui destinee a des rails de selection
JP2006077844A (ja) * 2004-09-08 2006-03-23 Aichi Mach Ind Co Ltd 変速機
FR2884574B1 (fr) * 2005-04-18 2007-07-06 Peugeot Citroen Automobiles Sa Dispositif de commande interne d'une boite de vitesses pour vehicule automobile
DE102006031523A1 (de) * 2006-07-07 2008-01-10 Zf Friedrichshafen Ag Schalteinrichtung für ein Zahnräder-Wechselgetriebe mit mindestens einer rastierbaren Schaltschiene
DE102007005309A1 (de) 2007-02-02 2008-08-07 Itw Gema Ag Pulversprühbeschichtungsanlage und Pulversprühbeschichtungsverfahren
FR2915261B1 (fr) * 2007-04-19 2009-07-03 Peugeot Citroen Automobiles Sa Dispositif de commande interne de boite de vitesses.
DE102009054874A1 (de) * 2009-12-17 2011-06-22 ZF Friedrichshafen AG, 88046 Parksperrenvorrichtung mit Notbetätigungsvorrichtung für ein Fahrzeuggetriebe
DE102010055446A1 (de) * 2010-12-21 2012-06-21 GM Global Technology Operations LLC Getriebeschaltvorrichtung
CN202834027U (zh) * 2012-09-27 2013-03-27 陕西法士特齿轮有限责任公司 一种变速器操纵机构
JP6067444B2 (ja) * 2013-03-22 2017-01-25 トヨタ自動車株式会社 手動変速機のシフト機構
FR3094771B1 (fr) * 2019-04-04 2021-04-02 Renault Sas Bras intermediaire de passage de vitesse

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US2175449A (en) * 1938-07-11 1939-10-10 Gen Motors Corp Remote control for transmissions
US2922315A (en) * 1957-11-29 1960-01-26 Gen Motors Corp Transmission control
US3115047A (en) * 1960-08-08 1963-12-24 Ford Motor Co Synchronized multiple speed power transmission mechanism
US3238807A (en) * 1962-07-24 1966-03-08 Porsche Kg Shifting arrangement
US3264895A (en) * 1963-05-08 1966-08-09 Gen Motors Corp Control linkage
US3677105A (en) * 1970-09-14 1972-07-18 Clark Equipment Co Hydraulic shifting mechanism for a mechanical transmission
US4197760A (en) * 1977-11-21 1980-04-15 Clark Equipment Company Manual shift control system for a multiple input-multiple output transmission
US4273004A (en) * 1978-07-25 1981-06-16 Morrison William M Gear selector mechanism
US4432251A (en) * 1981-01-29 1984-02-21 Clark Equipment Company Lost motion transmission control cams
DE3125632C1 (de) * 1981-06-30 1982-12-09 Audi Nsu Auto Union Ag, 7107 Neckarsulm Schaltvorrichtung für ein Wechselgetriebe, insbesondere in Kraftfahrzeugen
JPS5970955U (ja) * 1982-11-01 1984-05-14 トヨタ自動車株式会社 手動変速機におけるリバ−スギヤ鳴り防止装置
US4550627A (en) * 1982-12-06 1985-11-05 Eaton Corporation Transmission shifting mechanism
DE3601168A1 (de) * 1986-01-17 1987-07-23 Porsche Ag Vorrichtung zum schalten eines kraftfahrzeuggetriebes
DE3827571A1 (de) * 1988-08-13 1990-03-08 Porsche Ag Schaltvorrichtung fuer ein zahnraeder-wechselgetriebe eines kraftfahrzeugs

Also Published As

Publication number Publication date
DE59006960D1 (de) 1994-10-06
EP0412279A3 (en) 1991-09-04
US5146806A (en) 1992-09-15
EP0412279A2 (fr) 1991-02-13
DE3929678A1 (de) 1991-03-28

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